Legislating morality

Laws have always been used to attempt to correct moral dilemmas and to right historical wrongs. FLSA and the NLRA are no different. However, I wish to discuss another law that impacted labor and employment and legislated morality.

The Civil Rights Act was both a moral victory and legal victory.

Moreover, this was not government’s first attempt at legislating morality. Continuing with my civil rights for example, did you know that there were three statutes passed?

The first in 1866 (http://www.pbs.org/wgbh/amex/reconstruction/activism/ps_1866.html), again in 1875 (http://www.pbs.org/wgbh/amex/reconstruction/activism/ps_1875.html ) and the last one in 1964 (https://www.eeoc.gov/laws/statutes/titlevii.cfm).

Why did we, the USA, need three statutes to legislate this morality?